Call Button Click event after JavaScript function executed in ASP.Net

Using jquery in the client side(textbox validation) it is work,but the server(save and update code) is not working.

when i click save btn, if the textbox is empty it will show the msgbox.But i provide all value there is no response..

What can i do..

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
    $(function validation() {
        $("#btnsave").click(function () {
            if ($("#txtzonal").val() == "" ){ 
                alert("Zonal shouldn't be empty!")
            }
            else if($("#txtname").val() == "" ){ 
                alert("Name shouldn't be empty!")
            }
            else if($("#txtusername").val() == "" ){ 
                alert("Username shouldn't be empty!")
            }
            else if($("#txtpassword").val() == "" ){ 
                alert("Password shouldn't be empty!")
            }
            else if($("#txtphoneno").val() == "" ){ 
                alert("Phoneno shouldn't be empty!")
            }
            else if($("#txtgmail").val() == "" ){ 
                alert("Gmail shouldn't be empty!")
            }
            else if ($("[id*=ddlcertificate]").val() == "") {
                alert("Certificate is Empty")
            }
            else if ($("[id*=ddlcategory]").val() == "") {
                alert("Category is Empty")
            }
            else if ($("[id*=ddlqualification]").val() == "") {
                alert("Qualification is Empty")
            }

            else if ($("[id*=ddlexperience]").val() == "") {
                alert("Experience is Empty")
            }
            else {
                var radio = $("#ddlgender").find("input");
                var isChecked = false;
                for (var i = 0; i < radio.length; i++) {
                    if (radio[i].checked) {
                        isChecked = true;
                        break;
                    }
                }
                if (!isChecked) {
                    alert("Please select an option from gender!");
                }
               
            }
            return false;
        });
    });
</script>

client side jquery

        protected void btnsave_Click(object sender, EventArgs e)
        {
                if (btnsave.Text == "Save")
                {
                    sqlCon.ConnectionString = objsqlHelpingClass.strSqlConnection;

                    SqlCommand SqlCmd = new SqlCommand("sp_zonal_insertupdate", sqlCon);
                    SqlCmd.CommandType = CommandType.StoredProcedure;
                    SqlCmd.Parameters.Add("@zonalid", SqlDbType.Int).Value = 0;
                    SqlCmd.Parameters.Add("@name", SqlDbType.VarChar).Value = txtname.Text;
                    SqlCmd.Parameters.Add("@username", SqlDbType.VarChar).Value = txtusername.Text;
                    SqlCmd.Parameters.Add("@password", SqlDbType.VarChar).Value = txtpassword.Text;
                    SqlCmd.Parameters.Add("@gender", SqlDbType.VarChar).Value = ddlgender.Text;
                    SqlCmd.Parameters.Add("@phoneno", SqlDbType.VarChar).Value = txtphoneno.Text;
                    SqlCmd.Parameters.Add("@experience", SqlDbType.VarChar).Value = ddlexperience.Text;
                    SqlCmd.Parameters.Add("@qualification", SqlDbType.VarChar).Value = ddlqualification.Text;
                    SqlCmd.Parameters.Add("@certificate", SqlDbType.VarChar).Value = ddlcertificate.Text;
                    SqlCmd.Parameters.Add("@category", SqlDbType.VarChar).Value = ddlcategory.Text;
                    SqlCmd.Parameters.Add("@gmail", SqlDbType.VarChar).Value = txtgmail.Text;
                    SqlCmd.Parameters.Add("@zonal", SqlDbType.VarChar).Value = txtzonal.Text;
                    SqlCmd.Parameters.Add("@type", SqlDbType.Int).Value = 1;

                    sqlCon.Open();
                    int intRowAffected = SqlCmd.ExecuteNonQuery();
                    sqlCon.Close();
                    if (intRowAffected > 0)
                    {
                        //lblWarning.Text = "Zonal Manager Added Successfully!...";
                       Page.ClientScript.RegisterStartupScript(this.GetType(), "Scripts", "<script>alert('Zonal Manager Added Successfully');</script>");
                        clearcontrol();
                    }
                }
                else if (btnsave.Text == "Update")
                {
                    sqlCon.ConnectionString = objsqlHelpingClass.strSqlConnection;

                    SqlCommand SqlCmd = new SqlCommand("sp_zonal_insertupdate", sqlCon);
                    SqlCmd.CommandType = CommandType.StoredProcedure;
                    SqlCmd.Parameters.Add("@zonalid", SqlDbType.Int).Value = Convert.ToInt32(hidzonalID.Value);
                    SqlCmd.Parameters.Add("@name", SqlDbType.VarChar).Value = txtname.Text;
                    SqlCmd.Parameters.Add("@username", SqlDbType.VarChar).Value = txtusername.Text;
                    SqlCmd.Parameters.Add("@password", SqlDbType.VarChar).Value = txtpassword.Text;
                    SqlCmd.Parameters.Add("@gender", SqlDbType.VarChar).Value = ddlgender.Text;
                    SqlCmd.Parameters.Add("@gmail", SqlDbType.VarChar).Value = txtgmail.Text;
                    SqlCmd.Parameters.Add("@phoneno", SqlDbType.VarChar).Value = txtphoneno.Text;
                    SqlCmd.Parameters.Add("@qualification", SqlDbType.VarChar).Value = ddlqualification.Text;
                    SqlCmd.Parameters.Add("@certificate", SqlDbType.VarChar).Value = ddlcertificate.Text;
                    SqlCmd.Parameters.Add("@experience", SqlDbType.VarChar).Value = ddlexperience.Text;
                    SqlCmd.Parameters.Add("@category", SqlDbType.VarChar).Value = ddlcategory.Text;
                    SqlCmd.Parameters.Add("@zonal", SqlDbType.VarChar).Value = txtzonal.Text;
                    SqlCmd.Parameters.Add("@type", SqlDbType.Int).Value = 2;

                    sqlCon.Open();
                    int intRowAffected = SqlCmd.ExecuteNonQuery();
                    sqlCon.Close();
                    if (intRowAffected > 0)
                    {
                        //lblWarning.Text = "Zonal Manager Updated Successfully";
                        Page.ClientScript.RegisterStartupScript(this.GetType(), "Scripts", "<script>alert('Zonal Manager Updated Successfully');</script>");
                        clearcontrol();
                    }
                }
            }

server side save and update funtion..